<template>
    <div class="app-container">

        <el-table v-loading="listLoading" :data="list" border fit highlight-current-row style="width: 100%">

            <el-table-column align="center" label="ID" width="80">
                <template slot-scope="scope">
                    <span>{{ scope.row.id }}</span>
                </template>
            </el-table-column>

            <el-table-column width="180px" align="center" label="Date">
                <template slot-scope="scope">
                    <span>{{ scope.row.timestamp | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
                </template>
            </el-table-column>

            <el-table-column width="120px" align="center" label="Author">
                <template slot-scope="scope">
                    <span>{{ scope.row.author }}</span>
                </template>
            </el-table-column>

            <el-table-column width="100px" label="Importance">
                <template slot-scope="scope">
                    <svg-icon v-for="n in +scope.row.importance" :key="n" icon-class="star" class="meta-item__icon" />
                </template>
            </el-table-column>

            <el-table-column class-name="status-col" label="Status" width="110">
                <template slot-scope="scope">
                    <el-tag :type="scope.row.status | statusFilter">{{ scope.row.status }}</el-tag>
                </template>
            </el-table-column>

            <el-table-column min-width="300px" label="Title">
                <template slot-scope="scope">
                    <template v-if="scope.row.edit">
                        <el-input v-model="scope.row.title" class="edit-input" size="small" />
                        <el-button class="cancel-btn" size="small" icon="el-icon-refresh" type="warning" @click="cancelEdit(scope.row)">cancel</el-button>
                    </template>
                    <span v-else>{{ scope.row.title }}</span>
                </template>
            </el-table-column>

            <el-table-column align="center" label="Actions" width="120">
                <template slot-scope="scope">
                    <el-button v-if="scope.row.edit" type="success" size="small" icon="el-icon-circle-check-outline" @click="confirmEdit(scope.row)">Ok</el-button>
                    <el-button v-else type="primary" size="small" icon="el-icon-edit" @click="scope.row.edit=!scope.row.edit">Edit</el-button>
                </template>
            </el-table-column>

        </el-table>
    </div>
</template>

<script>
    import { fetchList } from '@/api/article';

    export default {
        name: 'InlineEditTable',
        filters: {
            statusFilter(status) {
                const statusMap = {
                    published: 'success',
                    draft: 'info',
                    deleted: 'danger'
                };
                return statusMap[status];
            }
        },
        data() {
            return {
                list: null,
                listLoading: true,
                listQuery: {
                    page: 1,
                    limit: 10
                }
            };
        },
        created() {
            this.getList();
        },
        methods: {
            getList() {
                this.listLoading = true;
                fetchList(this.listQuery).then(response => {
                    const items = response.data.items;
                    this.list = items.map(v => {
                        this.$set(v, 'edit', false); // https://vuejs.org/v2/guide/reactivity.html
                        v.originalTitle = v.title; //  will be used when user click the cancel botton
                        return v;
                    });
                    this.listLoading = false;
                });
            },
            cancelEdit(row) {
                row.title = row.originalTitle;
                row.edit = false;
                this.$message({
                    message: 'The title has been restored to the original value',
                    type: 'warning'
                });
            },
            confirmEdit(row) {
                row.edit = false;
                row.originalTitle = row.title;
                this.$message({
                    message: 'The title has been edited',
                    type: 'success'
                });
            }
        }
    };
</script>

<style scoped>
    .edit-input {
        padding-right: 100px;
    }
    .cancel-btn {
        position: absolute;
        right: 15px;
        top: 10px;
    }
</style>
